Lie face up, with your back flat on an exercise mat, your legs extended out in front of you and your hands gently placed on either side of your head. This is your start position. Proceed to lift your torso from the floor, extending your right arm forward towards your left toes. Simultaneously, proceed to lift your left leg from the floor, keeping it fully extended. You should finish by touching your hand to your toe. Hold for a moment. Lower down to starting position, bringing your hands back to either side of your head. Repeat the movement using the opposite hand and leg. Repeat the same sequence for the required number of reps (or time).